girl to kill Ryu and steal the demon statues; she chooses to be with Ryu instead of carrying out the order. The two kiss, and the girl tells Ryu her name, Irene Lew; they watch as the sun rises. Gameplay Ninja Gaiden is a side-scrolling platform game in which the player takes control of the player character, Ryu Hayabusa, and guides him through six "Acts" that comprise 20 levels. A life meter represents Ryu's physical strength, which decreases when he is hit by an enemy or projectile. A "life" is lost when the life meter is depleted entirely, when Ryu falls off the screen, or when the timer runs out. A game over screen appears when all lives are lost; however, the player may restart the level where this occurred by continuing. At the end of every Act, the player fights a boss; bosses have life meters depleted by player attacks. When its life meter is depleted entirely, a boss is defeated. Each boss is one of the "Malice Four"—evil underlings of the Jaquio, the game's main antagonist. The Malice Four consist of Barbarian, Bomberhead, Basaquer, and their leader Bloody Malth. Players attack enemies by thrusting at them with Ryu's Dragon Sword—a katana-like sword passed down by the Hayabusa clan for generations. They can also use secondary weapons that consume Ryu's "spiritual strength". These include throwing stars, "windmill throwing stars", which cut through enemies and return like boomerangs, a series of twirling fireballs named "the art of the fire wheel", and a mid-air slashing technique called the "jump & slash". When Ryu's spiritual strength meter is too low, the player cannot use secondary weapons. Players can replenish Ryu's spiritual strength by collecting red and blue "spiritual strength" items found in lamps and lanterns. Other items found along the way include hourglasses that freeze all enemies and projectiles for five seconds, bonus point containers, potions that restore six units of physical strength, "invincible fire wheels" that make Ryu temporarily invincible to attacks and 1-ups. Ryu can jump on and off ladders and walls, and by using the directional pad, he can climb up or down ladders. Ryu can spring off walls by holding the directional pad in the opposite direction he is facing and pressing the jump button. He cannot attack while on walls or ladders. Players can use this technique to get Ryu to climb up spaces between walls and